August Long Challenge 2017
Palindromic Game, Greedy Candidates, Chef and Rainbow Array
October Challenge 2017
A Balanced Contest, (Challenge) Connecting computers, Counter Test For CHEFSUM, Max Mex, Chef and Cycled Cycles, Chef and a great voluntary Program, Chef and Magic Arrays
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
December Challenge 2017
Chef and Hamming Distance of arrays, Penalty Shoot-out, Chef And Easy Xor Queries, Total Diamonds, Chef and Universe, Chef And his Cake
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
February Challenge 2018
Chef And His Characters, Permutation and Palindrome, Car-pal Tunnel, Chef And The Patents, Broken Clock
March Challenge 2018 DIV 1
Chef and Easy Problem, Mix the Colors, Minions and Voting
July Challenge 2018 Division 2
Reach Equilibrium, Magic Set, Strike or Spare, No Strings Attached
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